If you think that time you biked from Philly to New York was an epic journey, this humpback whale would like a word with you. She swam from Brazil all the way to Madagascar, probably by way of the Southern Ocean--a distance of about 6,200 miles, the longest documented journey ever made by a mammal.
A research effort doubles as a shark-attack warning system
By Justin McLachlan
Posted 07.21.2010 at 10:15 am 2 Comments
Great white sharks have been around for more than four million years, yet they remain one of the world’s most mysterious animals. Scientists know that the beasts have special organs for sensing electromagnetic fields and that their jaws can snap down with 4,000 pounds of force. But migration patterns, which are critical for conservation efforts, are mostly unknown.
Humans built electrical barriers and dumped poison in the Illinois waterways, but an alien species still managed to leave a disturbing presence in the waters of Lake Michigan near Chicago. Fresh lake samples taken in December revealed the DNA of aggressive Asian carp, according to the Journal Sentinel. That news surfaced even as the U.S. Supreme Court announced yesterday that it had turned down a plea from Great Lakes states to force the U.S. Army Corps of Engineers to shut lakeside navigation locks against the intruders.
Photographed from an ultra-light plane last December, these whooping cranes are being taught to fly south for the winter. Almost completely wiped out by 1940, there are now 536 known captive and wild whooping cranes in North America. But those raised in captivity will not migrate to warmer climes automatically -- they have to learn the skill.
You won’t find geolocator backpacks in the North Face catalog anytime soon, but if you fly south for the winter you may notice one strapped to the back of a migrating songbird. That’s how an inventive group of researchers have been tracking the speed and location of purple martins and wood thrushes flying from Pennsylvania to South America and back. What they’ve have found is truly astonishing.
The sophisticated navigation system of the moth keeps it on course despite powerful winds
By Matt Ransford
Posted 04.04.2008 at 12:11 pm 3 Comments
We can only assume DARPAs cyborg moths will be deployed relatively close to their targets, but we have no real word yet on their potential range. If the military does find the need to release the moths from the rear of operations under the cover of darkness, they would do well to pay attention to research coming out of the United Kingdom on how moths are able to migrate at night.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.